Patents by Inventor Wen J. Riu

Wen J. Riu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Auxiliary power steering mechanism
    Patent number: 5251715
    Abstract: This invention relates to an auxiliary power steering mechanism and in particular to one including an angle sensor for detecting an angle moved by a steering wheel, a direction controlling processor electrically connected with the angle sensor, a dc motor controlled by the angle sensor and the direction controlling processor, two ratchet wheels each provided with a guard plate at both sides thereof, a plurality of idle wheels, and two cables each connected with a steering arm, a chain connected between the two cables and engaged with the ratchet wheels.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: October 12, 1993
    Inventor: Wen J. Riu